Pulp-wood peeler



May 26, 1925. 1,539,603v

. J. SAPRONES PULP WOOD PEELER Filed June 5, 1924 2 Sheets-Sheet l John':Sa/from attorney J. SAPRONES PULP WOOD PEELER May 26, 1925.

Filed June 5, 1924 2 Sheets-Sheet 2 @Herwig Ratented May 26, 1925.

UNITED sTATEs JOHN SAPRONES, OF IBRIDGEPORT, CONNECTICUT.

PULP-Woon PEELER.

Application led June l5, 1924. Serial No. 718,053.

To all whom, 'it may concern.'

Be it known that I, JonN SArnoNEs, a citizen of Greece, residing atBridgeport, in the county of Fairfield and State of Connecticut, haveinvented certain new and useful Improvements in Pulp-food Peelers, ofwhich the following is a specification.

This invention relates to new and useful improvements in pulp woodpeelers.

An important object of the invention is to provide apparatus which iscapable of peeling ofi' the bark from pulp wood or other kinds of logs.

A further object of the invention is to provide a peeler which will cutuniform strips from logs irrespective of the diameter of the same. .i

A still further object of the invention is to provide means formechanically feeding logs through the peeling portion of the apparatusand for centering the logs whiley traveling through such peelingportion.

Other objects and advantages of the invention will be apparent duringthe course of the following description.

In the accompanying drawing forming a part of this specification and inwhich like numerals are employed for designating like parts throughoutthe same,

Figure 1 is an elevational view of the entire apparatus embodying thisinvention and villustrates a pair of logs being treated there- Figure 2is a top plan view paratus illustrated in Fig. 1, I

Figure 3 is a detail elevational view of one set of peeling elementswith the remaining sets o peeling elements illustrated in dotted linesto properly disclose the relative arrangement of all of said elements,

Figure 4 is a detail perspective View of one cutting element with itstensioning spring and guide,

Figu detail elevational View of the of the apre 5 is a cutting elementsillustrated in Fig. 1 and shows in longitudiinal section a log beingoperated upon by said cutting element, and

Figure 6 is a fragmentary elevational view of the feeding conveyoremployed for moving logs through the peeling portion of the apparatus.

In the drawing, wherein for the purpose of illustration is shown apreferred embodiment of thisinvention, the numeral 5 designates the sidebars of a base frame which is employed for supporting the apparatus andis retained in an elevated position in respect to the ground by the legs6. A desirable number ofv cross braces 7 are provided for keeping theseside bars 5 in fixed relation with respect to each other and forstrengthening the base frame.

Carried'by the receiving end of the base frame is a trough 8 which is ofsubstantially V-shape and is formed of the perpendicularlylextendingbraces 9 to which are secured the longitudinally extending boards 10.The discharge end of the base frame is also provided with asubstantially V-shaped trough which is formed of the braces 11 andboards 12.

Suitably supported adjacent the receiving end of the base frame is atransversely extending horizontalshaft 13 which carries a roller 14.Snitably journaled upon the base frame in prokimity to the outer ends ofthel boards 10 is a transverse shaft 15 carrying a roller `16. Mountedupon these rollers 14 and 16 is an endless belt 17, best illustrated inFig. G. rlhis belt 17 is provided with a plurality of transverselyextending, pivotally mounted bars 18 having sharpened edges 18a.Suitably keyed to the shaft 15 is a pulley wheel 19 which carries thebelt 2() that rides upon the pulley wheel 21 carried by the power shaft22 which is journaled in the bearing Q3 carried by the base frame. It isto `be understood that suitable power is provided for driving this shaft22 for the purpose of causing the belt 17 with its bars 18 to travel inthe direction of the arrow in Fig. 6. This belt 17, with its bars 18, isintended to feed logs L through the apparatus. It is to be understoodthat these bars 18 are piyotally secured to the belt 17 in such a mannerthat they will pivot forwardly in the direction of travel of the beltand thatthey are prevented, by any suitable means, from pivotingrearwardly in the opposite direction of the travel of the belt. As' alog L is started onto this belt 17, the bars 18 positioned between theends of the log will pivot forwardly for causing their ioo sharpenededges 18l to engage the outer surface of the belt, thebars not beingable to support the weight of a, log. These bars will be pivotedforwardly until the rear end of 'the log passes onto the belt whereuponthe Vnext bar .18 passing'around the roller 14- will be placed inengagement lwith the rear j trated in Fig. 3. For the purpose ofresuitable end of this log and will be retained in a verticallyextending position for feeding the log longitudinally forwardly.

Carried by the boards 10 are a circular series of reversely curvedspring arms 24 which are employed for centering the logs L in respect tothe cuttingv elements, tol be described at a later point. Thetransversely extending brace bar -7 positioned adjacent the rear ends ofthe boards 12, is provided with a perpendicularly extending ring 25which cooperates with the said brace bar 7 for carrying a4 circularseries of spring arms 26 which are adapted for engaging the frontl endof the logs as they are fed out of the central portion of the apparatusonto the endless conveyor belt 27 which is carriedby rollers 28 and 29mounted on shafts 30 and 31. The shaft 3 0 is provided with a pulley 32upon which rides .a belt 33 which engages a second pulley 34 ,carried bythe shaft 15. It will, therefore, be seen that the conveyor belt 27travels in unison with the conveyor belt 17.

Suitably secured to the side bars 5 of thej base frame, as by theV-shaped braces 35, are a series of rings 36, 37, 38 and 39 which areconcentrically arranged lwith the arms 2 4 and 26. Extending between therings 36 and 37 and suitably secured thereto are a desired number oflongitudinally extending bars 40 which are equi-spaced around theperipheries of the said rings. Extending between the rings 37 and 38 arethe equispacedr longitudinally extending bars 41 which are positionedlaterally'of the bars 40 or staggered in respect thereto. Extendingbetween the rings 38 and 39` are a third set of longitudinally extendingbars 42 which are positioned laterally of the bars 41 in such a mannerthat they' will be arranged inv staggered` relation with thesebars andalso the bars 40. By inspecting Figs. 1, 2 and 3, it will be seen thatthe rings 36, 37 and 38 are provided with a plurality of pivoted arms 43which are connected to these rings in longitudinal alinement with thebars 40, 41- and 42 for the purpose ofarranging these arms 43 instaggered relation in respect to each other as best illustaining theouter ends of these arms in proximity to a `log L passing through therings 36 to 39 inclusive, the arms 43 are each provided With a rod 44which extendsy through a opening in one of the bars 40, 41 or 42 and asa spring 45 encircling the same and positioned between its arm 43 andthe respective bar 440, 41er 42.

In Figs. 4 and 5, an arm 43 is illustrated in detail as having removablyattached to its outer end a transverse y extending cutting blade 46 ofarcuate shape which is positioned lwith its cutting edge 47 presented tofed longitudinally through' the apparatus toward the discharge end ofthe base frame, the bark B will be peeled o, as best illustrated in Fig.5, into longitudinally extending strips which will be of equal length tothe length of the log being peeled. vThe arm 43, in Figs. 4 and 5, isalso illustrated as being provided with an arcuate guiding blade 48which is pivotally secured, as at 49, and is clamped in its adjustedposition by the. bolt 50 received within an arcuate slot in the saidblade 48.

'It is believed thatl the manner of feeding logs through thepeelingportion of this apparatus has been suiciently described heretofore andfor this reason the action of the cutting elements 46 will-be describedat this point. '-It is intended that only the arms 43 pivotally carriedby the rings 37 and 38 be providedwith the guiding blades 48. As a logis passed through the ring 36, and as it approaches the ring 37, thecutting elements 46 carried by the arms 43 pivotally mounted upon thisring 36 will start peeling strips from the saidlog. As the front of thelog approaches lthe arms 43 carried by the ring 37, the guiding blades38 will aline .with one edge of the bark still remaining upon the logand these blades will guide the cutting elements 46 carried by the arms43 pivotally securedl to the ring 37 so that a second strip Will be cutfrom the log to the left of each of the irst strips. The 10g will thenbe fed through the rings 38 and 39 and the cutting elements 46 carriedby the arms secured to the ring 38 willcut the remaining strips `of barkfrom the log2 the blades 48 carried by these last mentioned arms 43being employed'for guiding the-cutting elements 46. v

It is to be understood that the form of.

this invention herewith shown and described is to be taken as a`preferredexample Vof the same, and that various changes in the shape,size, and arrangement of-parts may be resorted to without departing fromthe spirit of the invention or the scope of the subjoined claims.

Having thus described the invention, claimf- 1. In a device of thetypedescribed, a base frame, an endless conveyor belt at the re` ceiving endofthe base frame, transversely extending bars pivotally carried by lsaid-belt for engaging logs to feed them in the direction of movement. ofsaid belt, an endless conveyor" at the'discharge end 'of the frame forfeeding logs off o the latter, a

group of resiliently mounted bark lpeeling,

blades carried by the base frameb'etween said endless conveyors, aclrcular series of reversely curved resilient arms carried by.

said fame at one end of the group of peeling elements and a circularseries of inwardly the logs L in such a manner that as they are curvedresilient arms carried by said frame at the other end of the group ofpeeling elements for centering the logs while being operated upon bysaid elements, and means for driving the endless conveyors in unison. 2.In a device of the type described, a base frame, a framework carried bysaid base frame, a plurality of sets of arms lpivotally carried by saidfran'ieivork, the arms in each set being arranged in circular series andpositioned in staggered relation to the arms of the other'sets, meansfor yieldably retaining the free ends of said arms in close proximity tothe axes ot' their .respective circles, bark peelingblades extendinglaterally from the free ends of said arms, and means for feeding logsaxially through the circular series of peeling means.

3. In a device ot' the type described, a base frame, a plurality ,ofconcentrically arranged rings carried by said base frame, a plurality ofarms pivotally carried by said rings, means for yieldablyretaining thefree ends ot said arms in close proximity tothe axes of said rings, abark peeling blade extending laterally of the free end of each arm,means for feeding logs through ysaid rings, and a circular series ofreversely curved spring arms for centering said logs while being fedthrough said rings.

4. In a device of the type described, a'

base frame, an endless conveyor carried by the receiving end of saidframe, an endless conveyor carried by the discharge end of said frame,said conveyors being adapted'for feeding logs longitudinally, aplurality. ofV

rings carried by said frame between said conveyors, a plurality of armscarried by each ring, resilient means for forcing the free ends of saidarms toward the axes of said rings, a bark peeling element carriedunison.

by the free end of each arm, the bark peeling elements associated witheach ring 'being arranged in staggered relation to the bark peelingelements carried by the remaining rings, means for centering the logspass` ing through said rings, and means for driving said endlessconveyors lin unison.

5.' In a device of the type described, a basel frame, an endlessconveyor belt carried bythe receiving end of said frame, an endlessconveyor belt carried by the discharge end of said frame, said conveyorsbeing adapted for feeding logs longitudinally along said frame, 'aplurality of'equi-spaced rings carried by said frame between saidconveyors, a plurality of pivotalarms carried by each ring, resilientmeans for forcing the free ends of said arms toward the axes of saidring and with the arms extending toward the discharge' end ofthe frame,a laterally projecting bark peeling blade carried by the free end ofeach arin, the bark peeling blades associated with each ring beingarranged in. staggered relation-to the bark peeling-blades carried bythe remaining rings, a circular series of reversely curved spring armsarranged at one end of the plurality of rings and extending toward thedischarge end of the frame and a circular series of inwardly curvedspring arms arranged at the other end of the plurality of rings andextendin toward the discharge end of the frame, w ereby said logs willbe centered in respect to the bark peeling elements while passingthruthe rings, and

means for drivingsaid endless conveyors iii In testimony whereof I mysignature.

JOHN sAPRoNEs.

